Daily Sunspot Evaluation
Observation Sheet Friday, 6 April 1984
There is no typed record for this day. The values below were read by computer from the table on the sheet; when in doubt, see the drawing. Details →
- Number of groups (g)
- 7
- Number of spots (f)
- 27
- Relative number (R)
- 97
- Observer
- HM
- Reading
- all checks consistent
- File
- 19840406.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HAX – 1 | 20 | 40W | 314 | 43W | 1.25 | 65 |
| 2 | AXX – 1 | 2 | 68E | 206 | 65E | -0.5 | 70 |
| 3 | ? – 1 | -9 | 78W | 352 | 81W | 69 | |
| 4 | EKO – 7 | -13 | 58W | 332 | 61W | 14.32 | 62 |
| 5 | ARX – 1 | -16 | 41W | 315 | 44W | 0.5.1 | 65 |
| 6 | CAI – 14 | -9 | 08W | 282 | 11W | 4.4 | 63 |
| 7 | AXX – 2 | -11 | 06E | 268 | 03E | 1.0.5 | 66 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.